/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*      Logging macros.   

*      

*

*/

#ifndef ROAP_APP_LOGGER_H

#define ROAP_APP_LOGGER_H

// INCLUDES

#include <e32std.h>

#include <e32def.h>

#include <flogger.h>

/**

* Determines log detail.

* - 0 -> Basic level. Only key events / data. Public API method calls.

*        Failures (panics).

* - 1 -> Basic level. More detailed about key events / data.

* - 2 -> Medium level. Function calls are logged.

* - 3 -> Medium level. More detailed. Observer callbacks.

* - 4 -> Detailed level.

* - 5 -> Detailed level. Most detailed, log grows very big.

*/

#define ROAP_APP_LOG_LEVEL 4

#ifdef _DEBUG

    /// Defining this enables logging. Needs flogger.lib.

    #define __TEST_ROAP_APP_LOG

#endif /* def _DEBUG */

#ifdef __TEST_ROAP_APP_LOG

    // CLASS DECLARATION

    /**

    * Logger class.

    */

    class RoapAppLogger

        {

        public:     // new methods

        /**

        * Write formatted log.

        * @param aLevel Log level.

        * @param aFmt Format string.

        */

        static void Write

            ( TInt aLevel, TRefByValue<const TDesC16> aFmt, ... );

        /**

        * Write formatted log.

        * @param aLevel Log level.

        * @param aFmt Format string.

        * @param aList Variable argument list.

        */

        static void Write

            (

            TInt aLevel,

            TRefByValue<const TDesC16> aFmt,

            VA_LIST& aList

            );

        /**

        * Write formatted log.

        * @param aLevel Log level.

        * @param aFmt Format string.

        */

        static void Write

            ( TInt aLevel, TRefByValue<const TDesC8> aFmt, ... );

        /**

        * Write formatted log.

        * @param aLevel Log level.

        * @param aFmt Format string.

        * @param aList Variable argument list.

        */

        static void Write

            (

            TInt aLevel,

            TRefByValue<const TDesC8> aFmt,

            VA_LIST& aList

            );

        /**

        * Write hex dump.

        * @param aLevel Log level.

        * @param aHeader Header string.

        * @param aMargin Margin.

        * @param aPtr Data.

        * @param aLen Data length.

        */

        static void HexDump

            (

            TInt aLevel, 

            const TText* aHeader,

            const TText* aMargin,

            const TUint8* aPtr,

            TInt aLen

            );

        };

#endif /* def __TEST_ROAP_APP_LOG */

#ifdef __TEST_ROAP_APP_LOG

    /// Write formatted to log.

    #define CLOG( body ) RoapAppLogger::Write body

    /// Write hex dump.

    #define CDUMP( body ) RoapAppLogger::HexDump body

    /// Guard "log-only" argument name with this (expands to argument).

    #define LOG_ONLY( argName ) argName

#else /* not defined __TEST_ROAP_APP_LOG */

    /// Do nothing (log disabled).

    #define CLOG( body )

    /// Do nothing (log disabled).

    #define CDUMP( body )

    /// Guard "log-only" argument name with this (expands to nothing).

    #define LOG_ONLY( argName )

#endif /* def __TEST_ROAP_APP_LOG */

#ifdef _DEBUG

    /// Guard "debug-only" argument name with this (expands to argument).

    #define DEBUG_ONLY( argName ) argName

#else /* not defined _DEBUG */

    /// Guard "ldebug-only" argument name with this (expands to nothing).

    #define DEBUG_ONLY( argName )

#endif /* def _DEBUG */

#endif /* def ROAP_APP_LOGGER_H */